Fluid fuel burner



y 8 1934- E. J. LATTNER 1,957,717

FLUID FUEL BURNER Original Filed Nov. 12, 1932 .jllliwllilvlll. all: i

1% mikuvlmmlmwlu Patented May 8, 1934 UNITED STATES FLUID FUEL BURNER Emert J. Lattner,

Cedar Rapids, Iowa Original application November 12, 1932, Serial No. 642,441. Divided 17, 1933, Serial No. 6

4 Claims.

This invention relates to fluid fuel burners and particularly to a support for that type of burner in which fuel is atomized and mixed with a blast of air and delivered into the furnace by suitable motor-driven air circulating means.

This application is a division of my co-pending application Serial Number 642,441, filed November 12th, 1932.

In fluid fuel burners of the type referred to,

the means for atomizing the liquid fuel under pressure, the means for furnishing a blast of air, and the means for mixing the atomized fuel and air are generally in one unit, and this unit or burner is usually mounted by means of a suitable base upon the floor or any other suitable foundation in front of the furnace, with the blast tube in which the atomized fuel is mixed with air, projecting into the furnace.

I have observed that the devices of the prior art are oftentimes troublesome by reason of undesirable noise produced by the burner while in operation. I have discovered that one of the main sources of noise from the burner is that arising from the motor and the devices driven by the motor. Any vibration of the motor or driven devices is augmented by the structure of the burner itself and is transmitted through the frame of the burner to the base or support and from thence to the floor or foundation upon which the burner rests. The floor or foundation then acts as a sounding board to amplify the noise set up by any vibration of the motor and driven devices.

I have devised means for overcoming the dimculties above mentioned and it is a general object of my invention to provide a means for minimizing the effects of vibration of the parts of fluid fuel burners and the like.

A more specific object of my invention is to provide a new and improved supporting structure for fluid fuel burners.

Other and further features and objects of the invention will be more apparent to those skilled in the art upon a consideration of the accompanying drawing and following specification, wherein is disclosed an exemplary embodiment of the invention, with the understanding, however, that such changes may be made therein as fall within the scope of the appended claims without departing from the spirit of the invention. The device may be used, or adapted for use, for other purposes.

In said drawing:

Figure 1 is a side elevational view of a fluid fuel burner which is provided with my new and and this application May 71,537

improved supporting device. Portions of the burner have been broken away to show the working parts of the burner to better advantage, and

Figures 2, 3 and 4 are views in perspective, in exploded relation, of the means for supporting the main portion of the burner on a base, and of the base itself.

While the structure of the burner itself is not the subject matter of the present invention, except in its connection with the supporting means, a brief description of the burner construction and operation may be of assistance in explaining the necessity for some means for minimizing or eliminating noise, and how the noise is minimized or eliminated by my invention.

In the fluid fuel burner shown in the drawing, a box-like housing 10, which acts as a main frame member, is the support for the various parts of the burner. In this type of burner the housing 10 is rounded at the bottom thereof, as indicated by the numeral 11, and is so arranged as to provide the frame or housing for a blower fan (not shown), which draws air in through the louvers 12 at the side of the blower, and drives the air through the blast conduit 13.

Fuel is furnished to the burner by means of the conduit 16 which is connected to a strainer 17. The fuel then passes into a pump, such as the gear pump 18, which is driven by the same motor (not shown) which drives the blower fan. The fuel is then pumped under pressure into the valve 19 which is so arranged that the fuel is furnished under a certain predeterminate pressure to the conduit 21 leading to the burner nozzle 22. 'Any excess fuel is lead back by means of the conduit 23 into the strainer 17.

Electrical energy for igniting the fuel issuing from the burner nozzle is furnished by a high tension transformer mounted in the easing 26 on top of the housing 10. Conductors, indicated by the numeral 27, conduct the high tension current from the transformer to ignition points 28 which are located above and in front of the burner nozzle.

It is apparent that the rotating parts of the burner are carried by the housing 10 and further that any noise caused by vibration set up by air currents in the burner will be gathered by the blast conduit 13 and carried to the housing 10. It is apparent, therefore, that 'the housing 10 is a focal point for vibrations which may be present in the burner. If the housing 10 may be made to aiford the support for the entire burner and if no other part of the burner touches or rests upon any support which in turn rests upon the foundation, and if the housing 10 may then be properly suspended or insulated with respect to the supporting framework or other supporting device, these vibrations will not travel any further than the hous ing 10, and consequently no objectionable noise or vibration will be set up in the floor or other support. This feature is of considerable importance because any noise or vibration arising from the burner may become very annoying and may even result in dissatisfaction with the burner installation by the owner.

I preferably deaden vibration of the housing 10 by providing a resilient connection between the housing and the supporting frame which supports the burner.

In a preferred construction I provide a- U- shaped base plate or bracket 31 which may be bolted to the floor or other supporting member at its ends by means ,of bolts 32. A rod or pipe-like standard 33 projects vertically from the central portion of the U-shaped member and a cylindrical member 34 of rubber or other resilient material is disposed on the standard 33 in such a location as to properly space the burner from the floor so that the blast tube 13 will project into the furnace (not shown).

The rear wall of the housing 10 is provided with a bracket'member 36 having a verticallyarranged, semi-cylindrical recess in the rear wall thereof, as indicated at 37, adapted to receive the resilient member 34. A U -shaped clamp member 38, of substantially the same cross-sectional area as the bracket member 36, is also provided with a semi-cylindrical recess 39 adapted to be received on the resilient member 34. The cap 38 is secured on bracket 36 by means of bolts 41 which are passed through openings 42 in the cap and threaded openings 43 in the bracket 36.

It is apparent that by so arranging the burner that all the rotating parts thereof are supported by one main housing, thus concentrating vibration in this housing, and that by then supporting this housing by vibration-insulating means, I have provided a structure in which vibration is deadened before it can reach the floor or other supporting members, and that in this way I have substantially minimized or eliminated one of the objectionable features of machines of this type in which rotating parts are employed.

Although I have described a certain specific embodiment of my invention it is apparent that modifications thereof may be made by those skilled in the art. Such modifications may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim as my invention:

1. In an oil burner, a base, a standard on the base, a main burner framework member including a rearwardly-extending bracket, a resilient member on the standard, and a cap for holding the bracket on the resilient member on the standard in order that the resilient member may absorb vibration from the main frame member.

2. In an oil burner, a base, a cylindrical vertically-extending standard engaged on the base, a main frame for the burner, a bracket at the rear of the main frame, a resilient member on the standard and means for clamping the bracket of the main frame on the resilient member on the standard.

3. In a support, a base, a vertically-extending 100 standard on the base, a cushion of resilient ma-- terial surrounding a portion of the standard, a bracket having a semi-cylindrical concave vertically-extending face, a cap also having a concave semi-cylindrical vertically-extending face 105 complementary to the concave face of the bracket, and clamp means for clamping the cap to the bracket over the cushion of resilient material, the bracket having means to afford a support for devices to be supported thereby.

4. In a support, a base, a vertically-extending cylindrical standard attached to the base, a cylindrical cushion of resilient material surrounding a portion of the standard, a main frame member, a bracket on the rear of the main frame member having a semi-cylindrical concave vertically-extending face for receiving a portion of the resilient member, and a complementary cap also having a semi-cylindrical concave vertically-extending face adapted to fit over the other portion of the resilient member, and clamping means for clamping the cap to the base to frictionally engage the bracket on the outer resilient member whereby the bracket and main frame are resiliently supported on the standard.

EMERT J. LA'I'I'NER. 

